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Crystic® Polyester Resin 2.406PA

1 of 176 products in this brand
Crystic® Polyester Resin 2.406PA is a pre-accelerated, thixotropic, orthophthalic polyester resin with low styrene emission. This laminating resin has rapid wet out and low exotherm, making it ideal for multi-layer laminates in spray or hand-lay applications. It has a 16-minute gel time, Lloyd's approval, and can be used in marine, transportation, building and construction, and industrial applications.

Polymer Name: Thermoset Polyester

Functions: Resins, Binders & Matrix Materials, Surface Finish

Chemical Family: Polyesters

Reinforcement Material: Glass Fibers

Color: Blue

Processing Methods: Hand Lay-up, Spray Lay-up

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Reinforcement Material

Features & Benefits

Applications & Uses

Composites Processing Methods
Formulation Guidelines

Crystic 2-406PA should be allowed to attain workshop temperature (18ºC - 20ºC) before use. It needs only the addition of a catalyst to start the curing reaction. The recommended catalyst is Catalyst M (or Butanox M50). The catalyst should be added at 1% or 2% into the resin and thoroughly dispersed, shortly before use.

The geltime of the resin can be approximately determined from the table below.
Pot Life

Parts of Catalyst M to 100 Parts Crystic 2-406 PA 1.0 2.0
Pot life in Minutes at 15ºC 36 23
Pot life in Minutes at 20ºC 22 16
Pot life in Minutes at 25ºC 16 11

The resin, mold and workshop should be at, or above, 15ºC before curing is carried out.

Properties

Color
Typical Liquid Resin Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C, 37.35 s⁻¹)4.4PoiseBS 2782
Viscosity (at 25°C, 4500 s⁻¹)2.5PoiseBS 2782
Specific Gravity (at 25°C)1.1BS 2782
Volatile Content41%BS 2782
Acid Value16mg KOH/gBS 2782
Stability (at 20°C)3MonthsBS 2782
Gel Time (at 25°C, using 1% Catalyst M (or Butanox M50))16MinutesBS 2782
Laminate properties
ValueUnitsTest Method / Conditions
Glass Content (P.B)29.3%BS 2782
Tensile Strength (P.B)113MPaBS 2782
Tensile Modulus (P.B)7500MPaBS 2782
Elongation (at break) (P.B)1.8%BS 2782
Flexural Strength (P.B)224MPaBS 2782
Flexural Modulus (P.B)6900MPaBS 2782
Glass Content (E.B)27.4%BS 2782
Tensile Strength (E.B)74MPaBS 2782
Tensile Modulus (E.B)6900MPaBS 2782
Elongation (at break) (E.B)1.3%BS 2782
Flexural Strength (E.B)196MPaBS 2782
Flexural Modulus (E.B)6800MPaBS 2782
Interfacial Properties
ValueUnitsTest Method / Conditions
Unnotched Charpy Impact Strength (Normal***)72kJ/m²ISO 179
Single Lap Shear Strength (Normal***)3.8MPaBS 4994 Appendix
Short Beam Shear Strength (Normal***)22MPaBS 2782 Method 341A
Fracture Surface Energy (Normal***)350J/m²Scott Bader test
Unnotched Charpy Impact Strength (Resin-rich****)70kJ/m²ISO 179
Single Lap Shear Strength (Resin-rich****)3.9MPaBS 4994 Appendix
Short Beam Shear Strength (Resin-rich****)21MPaBS 2782 Method 341A
Fracture Surface Energy (Resin-rich****)300J/m²Scott Bader test
Resin Properties - Unfilled Casting (Cured)
ValueUnitsTest Method / Conditions
Barcol Hardness (Model GYZ 934-1)*45BS 2782
Deflection Temperature (under load 1.80 MPa) †*62ºCBS 2782
Water Absorption (24h, at 23°C)*14mgBS 2782
Tensile Strength*54MPaBS 2782
Tensile Modulus*3700MPaBS 2782
Elongation (at break)*1.7%BS 2782
Specific Gravity (at 25°C)*1.2BS 2782
Volumetric Shrinkage*8.35%BS 2782
Note

* Curing Schedule - 24 hrs at 20ºC, 3 hrs at 80ºC
† Curing Schedule - 24 hrs at 20ºC, 5 hrs at 80ºC, 3 hrs at 120ºC
** C.S.M Laminate made with 4 layers 450g/m CSM Curing schedule - 24hrs at 20ºC, 16hrs at 40ºC
***24hrs delay between 2 lay-ups of 2 x 450 g/m² chopped strand mat
****2 x 450 g/m² CSM. Allowed to gel. Then 700 g/m² pure resin interface Then 24hrs delay. Then 2 x 450 g/m² CSM.
††Data obtained using 5 days delay instead of 24hrs

Regulatory & Compliance

Quality Standards
Approvals

Crystic 2-406PA is approved by Lloyd’s Register of Shipping for the construction of craft under their survey.
It also meets the requirements of BS 3532 : 1990 : Type A

Technical Details & Test Data

Additives

The addition of certain pigments, fillers or extra styrene may adversely affect the properties of Crystic 2-406PA. Users should seek advice from our Technical Service Department before making any additions.

Post Curing

Satisfactory laminates for many applications can be made from Crystic 2-406PA by curing at workshop temperature (20ºC). For optimum properties and long term performance, however, laminates should be post cured before being put into service. The laminate should be allowed to cure for 24 hours at 20ºC, and then be oven cured for 3 hours at 80ºC or 16 hours at 40ºC.

Packaging & Availability

Packaging Type
Packaging

Crystic 2-406PA is supplied in 25kg and 200 kg containers. Bulk supplies can be delivered by road tanker.

Storage & Handling

Storage

Crystic 2-406PA should be stored in the dark in suitable closed containers. It is recommended that the storage temperature should be less than 20ºC where practical, but should not exceed 30ºC. Ideally, containers should be opened only immediately prior to use. Where they have to be stored outside, it is recommended that they are kept in a horizontal position to avoid the possible ingress of water.